Construction is near complete in Hong Kong, where China is building a 4 million-square-foot station for the new trains, as reported by The Hong Kong Free Press.

While the seven-year, $US10.7 billion project is certainly impressive, it has faced much controversy surrounding its cost, its construction delays, and how it could affect Hong Kong’s political autonomy.

Construction began in 2011, and the majority of the line is already in operation. The last phase in Hong Kong will measure about 16 miles long,according toChina Daily.

The trains, named the Vibrant Express, can go up to 217 mph. They are equipped with power outlets and wi-fi.Travelling from Hong Kong to Guangzhou will take under an hour. On China’s current intercity trains, the same trip lasts around two hours.The line connects to China’s existing 15,500-milelong national high-speed rail network — the largest in the world.Also known as Guangshen’gang XRL, the new railway will pass through seven stations when complete.[img]https://static.businessinsider.com/image/5ac7efcd4d038618008b4b2a-1200.jpg[/img]MTR CorporationA rendering of the West Kowloon Station in Hong Kong.

While impressive, the project has also faced a lot of controversy.In early 2018, China Railway Corp announced that trips from Hong Kong to Guangzhou would cost $US33, raising concerns about whether it would be affordable for low-income commuters.